Caire 5PK 2K/1K Pages (TM) Premium Compatible Xerox Phaser 6020 6022 6022/NI WorkCentre 6025 6027 6028 Toner Cartridge Set (6020: MYCK+K) Extra high [ Black 2,000 | Color 1,000 ] page yield, to minimise your downtime and service calls and drive your printer to maximum productivity. Extended '2 Year 100% Quality Satisfaction' Guarantee | No risk to your printer OEM warranty | Shelf Life: 24-36 Months Quality: Engineered to meet OEM standards If there is still toner in your cartridge, the last page will look as good as the first! Triple tested for quality assurance: First, we print test 100% of cartridges before packaging.Second, we perform monthly life testing at the manufacturing site.Third, our technical engineers test samples from our warehouse inventory. Compatible Laser Printer Model: Xerox Phaser 6020 6022 WorkCentre 6025 6027 6028 Series, Phaser 6022/NI